GMCPix,
I assume you have the Red push/pull switch...
The switch is wired as follows;
Green = 12v from the Fuse Panel
Red = High Rear
Black = Low Rear
The Black wire will be Tee taped under the floor with a wire that goes up to the speedometer adaptor located at the dash. The adaptor keeps the speedometer accurate regardless of what speed the rear is in, it's a little electric reduction unit in-line with the speedometer cable.
Make sure you ground both the electric shift motor and the adaptor...
That's it!
Mike B
